It is understood that the striker has been in and out of the club's training complex this week as he continues his recuperation.

It comes after Ibrahimovic used just six effective words in his farewell message to United supporters last week: "I came. I said. I conquered."

Although he missed the business-end of the season, the Swede won three trophies in his first season at Old Trafford, including the Europa League in his home city of Stockholm.

And Mourinho, who previously worked with Ibrahimovic at Inter, believes the 35-year-old played a crucial role in United's 2-0 win over Ajax - despite not playing.

"I think it's so unfair what happened to him," Mourinho said. "Sometimes football is unfair, sometimes life is unfair, I think it's so unfair.

"This night would be an amazing night if he was on the pitch, in his hometown, in the stadium where his statue will be, his first club when he left Sweden, his actual club in Manchester United, a season where he made an amazing impact, I'm really, really, really sorry Zlatan has not played this final.